Here is the output from one of our 5760 & 5508. It is looks like my 5508 is having 1GB & 5760 is having 10GB of RAM.
5760-1#sh version
cisco AIR-CT5760 (i686) processor with 10485760K bytes of physical memory.
Processor board ID FOC1727V0MT
2 Virtual Ethernet interfaces
6 Ten Gigabit Ethernet interfaces
2048K bytes of non-volatile configuration memory.
10485760K bytes of physical memory.
255000K bytes of Crash Files at crashinfo:.
3612840K bytes of Flash at flash:.
0K bytes of Dummy USB Flash at usbflash0:.
0K bytes of at webui:.
(5508) >show memory statistics
System Memory Statistics:
Total System Memory............: 1027411968 bytes
Used System Memory.............: 563486720 bytes
Free System Memory.............: 463925248 bytes
Bytes allocated from RTOS......: 73573184 bytes
Chunks Free....................: 249 bytes
Number of mmapped regions......: 59
Total space in mmapped regions.: 311734272 bytes
Total allocated space..........: 71516232 bytes
Total non-inuse space..........: 2056952 bytes
Top-most releasable space......: 490840 bytes
Total allocated (incl mmap)....: 385307456 bytes
Total used (incl mmap).........: 383250504 bytes
Total free (incl mmap).........: 2056952 bytes
This would be a good comparison data sheet for all controllers (even it does not contain RAM information), refer that if you are comparing two products
http://www.cisco.com/en/US/prod/collateral/modules/ps2706/at_a_glance_c45-652653.pdf
HTH
Rasika
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